US PATENT SUBCLASS 423 / 333
.~.~.~.~ By precipitating or gelling from silicate solution

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

324  DF  SILICON OR COMPOUND THEREOF {4}
325  DF  .~ Oxygen containing {2}
326  DF  .~.~ Metal containing (i.e., silicate) {3}
332  DF  .~.~.~ Alkali metal containing (Li, Na, K, Rb, or Cs) {2}
333.~.~.~.~ By precipitating or gelling from silicate solution

DEFINITION

Classification: 423/333

(under subclass 332) Processes which include the step of causing a substance to become insoluble and come out of solution or to become a jelly like mass in a solution, the solution being that of the silicate of an alkali metal.